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Nickel 690 vs. ASTM A369 Grade FP91

Nickel 690 belongs to the nickel alloys classification, while ASTM A369 grade FP91 belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is nickel 690 and the bottom bar is ASTM A369 grade FP91.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 3.4 to 34
19
Fatigue Strength, MPa 180 to 300
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
75
Shear Strength, MPa 420 to 570
410
Tensile Strength: Ultimate (UTS), MPa 640 to 990
670
Tensile Strength: Yield (Proof), MPa 250 to 760
460

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 1010
600
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
26
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
10

Otherwise Unclassified Properties

Base Metal Price, % relative 50
7.0
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 120
37
Embodied Water, L/kg 290
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
560
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 33
24
Strength to Weight: Bending, points 20 to 27
22
Thermal Diffusivity, mm2/s 3.5
6.9
Thermal Shock Resistance, points 16 to 25
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Carbon (C), % 0 to 0.050
0.080 to 0.12
Chromium (Cr), % 27 to 31
8.0 to 9.5
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 7.0 to 11
87.3 to 90.3
Manganese (Mn), % 0 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 58 to 66
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.5
0.2 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010